Boston Scientific Corporation
MX ˙ BMV ˙ FR0010424135
SecurityMX:BSX / Boston Scientific Corporation
InstitutionTanager Wealth Management LLP
Latest Disclosed Ownership5,031 shares
Latest Disclosed Value $ 315,695
Tanager Wealth Management LLP reports 1.97% increase in ownership of BSX / Boston Scientific Corporation

On April 20, 2026 - Tanager Wealth Management LLP filed a 13F-HR form disclosing ownership of 5,031 shares of Boston Scientific Corporation (MX:BSX) valued at $315,695 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 4,934 shares of Boston Scientific Corporation. This represents a change in shares of 1.97% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-20 2026-03-31 13F BOSTON SCIENTIFIC COM 101137107 5,031 97 1.97 316 -32.98 0.0306
2026-01-26 2025-12-31 13F BOSTON SCIENTIFIC COM 101137107 4,934 -44 -0.88 470 -3.29 0.0470
2025-10-24 2025-09-30 13F BOSTON SCIENTIFIC COM 101137107 4,978 318 6.82 486 -2.80 0.0510
2025-07-18 2025-06-30 13F BOSTON SCIENTIFIC COM 101137107 4,660 59 1.28 501 7.76 0.0590
2025-04-24 2025-03-31 13F BOSTON SCIENTIFIC COM 101137107 4,601 737 19.07 464 34.49 0.0604
2025-01-27 2024-12-31 13F BOSTON SCIENTIFIC COM 101137107 3,864 244 6.74 345 13.86 0.0448
2024-10-22 2024-09-30 13F BOSTON SCIENTIFIC COM 101137107 3,620 492 15.73 303 26.25 0.0408
2024-07-25 2024-06-30 13F BOSTON SCIENTIFIC COM 101137107 3,128 15 0.48 241 12.68 0.0358
2024-05-01 2024-03-31 13F BOSTON SCIENTIFIC COM 101137107 3,113 3,113 213 0.0344
2023-04-18 2023-03-31 13F BOSTON SCIENTIFIC COM 101137107 0 -4,461 -100.00 0 -100.00
2023-01-27 2022-12-31 13F/A-1 BOSTON SCIENTIFIC COM 101137107 4,461 4,461 206 0.0556
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.